Introduction to Electronystagmography for END Technologists

  title={Introduction to Electronystagmography for END Technologists},
  author={Brian Markley},
  journal={American Journal of Electroneurodiagnostic Technology},
  pages={178 - 189}
  • B. Markley
  • Published 1 September 2007
  • Medicine
  • American Journal of Electroneurodiagnostic Technology
ABSTRACT. Electronystagmography (ENG) is a procedure used to evaluate patients with vertigo. Electrodes applied around the patient's eyes use the corneoretinal potential to record eye movements in response to numerous test maneuvers. Some of the portions of the ENG measure a patient's ability to track moving stimuli. Others monitor for the presence of nystagmus. Lastly, the lateral semicircular canals of the ear can be stimulated with warm and cool water or with air producing nystagmus. A… 
Electronystagmography versus videonystagmography.
VNG is a new technology that presents advantages in the evaluation of eye movements; however, despite its disadvantages, ENG is still considered a valuable test in the clinical setting.
Quantitative oculomotor and nonmotor assessments in late-onset GM2 gangliosidosis
Saccade accuracy (dorsal cerebellar vermis localization), fixation suppression, and OKN gain (cerebellar flocculus/paraflocculus localization) correlated with disease severity, suggesting that quantitative oculomotor measurements could be used to track disease progression.
[Chronic vertigo].


An electrical method for measuring and recording eye motion (electronystagmography) allows greater accuracy and sensitivity than methods previously used and demonstrates that the technique is valuable as a clinical tool.
Modern vestibular function testing.
Current tests of vestibular function concentrate on the horizontal semicircular canal-ocular reflex because it is the easiest reflex to stimulate (calorically and rotationally) and record (using
Changes produced by light in the standing potential of the human eye
The amplitude of the eye movement potential is related in a simple manner to the degree of rotation of the eyes and can be explained by supposing that the eye is an electrical dipole, orientated in the optic axis, which had been shown by the early animal experiments on the standing potential.
Electrodiagnosis in Clinical Neurology
This book is an American multi-author book directed mainly at a group of American doctors who practice solely in accident and emergency departments in both teaching and non-teaching hospitals, and covers subjects that represent new advances in approach or treatment relevant to the A & E setting.
Diagnosis and management of benign paroxysmal positional vertigo (BPPV).
This work describes the various techniques for this manoeuvre, plus treatments for uncommon variants of BPPV such as that of the lateral canal, and says posterior canal occlusion surgery is a safe and highly effective procedure.
Dorland's Medical Encyclopedia